/*
 *    Copyright 2020 Huawei Technologies Co., Ltd.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#include "GstFacade.h"

namespace NS_CRANE {
    unsigned GstFacade::gstInit(int argc, char** argv) {
        fprintf(stdout, "Init GST plugin system. \n");
        gst_init(&argc, &argv);
        return CRANE_SUCC;
    }

    void* GstFacade::gstCreate(std::string gstFactoryName, std::string name) {
        GstElement* gstPluginObj; 
        if (name.empty() == true) {
            gstPluginObj = gst_element_factory_make(gstFactoryName.c_str(), static_cast<const char*>(GST_NULLPTR));
        } else {
            gstPluginObj = gst_element_factory_make(gstFactoryName.c_str(), name.c_str()); 
        }
        return (gstPluginObj != GST_NULLPTR)? gstPluginObj : nullptr;
    } 

    void GstFacade::gstDestory(gpointer gstPlugin) {
        gst_object_unref(gstPlugin);
    }
}
